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Installation and Operation Manual
Models: 1.5 THP, 1.65 THP,
2.25 THP, 2.7 THP, and 3.45 THP
Catalog Numbers for THP Listing: NPTA150, NPTT165, NPTT225,
NPTT270, NPTT345, NPTQ165, NPTQ225, NPTQ270, NPTQ345
Programmable Pool Pump Motor/Control
This product does NOT provide a Safety
Vacuum Release System (SVRS).
Save this instruction manual for future reference.
Part #: M018485550000
Revision Date: March 11, 2025
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Table of Contents
Troubleshooting
Related Manuals for Nidec Neptune NPTQ270
Summarization of Contents
Electrical Requirements
Input Line Voltage
Specifies acceptable voltage ranges for operation.
Input Line Current (Amperage)
Lists full load AC line currents for different models.
Input Power Factor
Details the power factor correction circuit and range.
Input Power
Explains how power consumption is displayed and measured.
Installation Instructions
Prepare the Pool Pump Motor for Operation
Steps to get the motor ready before wiring.
Protect against Heat
Guidelines to prevent overheating and ensure ventilation.
Protect against Dirt
Instructions for keeping the motor clean and free of debris.
Protect against Moisture
Precautions to shield the motor from water damage.
Pump Control via the User Interface
Navigation Overview
Explains the function of UI buttons for navigation.
Timer Features Enabled (Default)
Menu Trees
Overview of the menu structure for settings.
My Pool Settings
Configuration for pool-specific parameters.
Install Settings
Settings for system configuration and pool parameters.
Timer Settings
Timer Settings Details
Configuration for start time, duration, and speed for each timer.
My Pool Settings
Temperature Unit
Configures display units for temperature (Fahrenheit/Celsius).
Priming Duration
Sets the time for the pump priming stage.
Priming Speed
Sets the RPM for the pump priming stage.
Low Temperature Monitor
Monitors ambient temperature to prevent freezing.
Low Temperature Threshold
Sets the temperature threshold for low temp monitoring.
Install Settings
Time of Day
Sets the current time for scheduling operations.
Remote Control
Enables external controller communication via RS-485.
Timer Settings
Timers 1-7
Customizable settings for seven timer events.
Timer Features Disabled (DOE Scheduling)
My Pool Settings
Pool-specific configurations for DOE scheduling.
Install Settings
System configuration for DOE scheduling.
Pool Capacity
Pool Capacity (Manual)
Manually enter the pool's water volume.
Pool Capacity (Calculate)
Calculate pool capacity based on dimensions.
Pump Capacity
Pump Capacity (Manual)
Manually enter the pump's GPM.
Pump Capacity (Estimate)
Estimate pump capacity based on motor horsepower.
Edit DOE Speeds
DOE Speed Settings
Configure the four operating speed percentages for DOE compliance.
Remote Control
Node ID
Sets the MODBUS address for remote communication.
Keypad Lockout
Lock the Menus
Prevents unintended modifications to settings.
Unlock the Menus
Allows access to settings and schedules.
Operational States
Describes the different operating modes of the motor.
Pump Control via the DI Board
Discrete Switch Inputs
Controls pump speed via external switch closures.
DI Board Connections
RS-485 Port
Interface for external controller communication.
RS-485 Connection Guidelines
Wire an External Pool Control System (Optional)
Connects the motor to external pool control systems.
Protections
Motor Protection
Describes various protection mechanisms for the motor.
Troubleshooting
Basic Troubleshooting
Step-by-step guide for diagnosing common motor issues.
Fault Conditions
Motor Control Overcurrent (HW)
Fault due to excessive motor phase current.
Motor Control Low Voltage
Fault caused by input voltage significantly below nominal.
Motor Control High Voltage
Fault caused by input voltage significantly above nominal.
Maintenance
Lower Your Utility Costs
Information on calculating energy savings with the motor.
Default Settings
Timer Features Enabled (Default Settings)
Factory default settings when timer features are enabled.
Timer Features Disabled (DOE Scheduling Defaults)
Factory default settings for DOE scheduling mode.
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